| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.layoutlib.bridge.android.support; |
| |
| import com.android.ide.common.rendering.api.ILayoutLog; |
| import com.android.layoutlib.bridge.Bridge; |
| import com.android.layoutlib.bridge.util.ReflectionUtils.ReflectionException; |
| |
| import android.content.Context; |
| import android.widget.TabHost; |
| |
| import static com.android.layoutlib.bridge.util.ReflectionUtils.getCause; |
| import static com.android.layoutlib.bridge.util.ReflectionUtils.getMethod; |
| import static com.android.layoutlib.bridge.util.ReflectionUtils.invoke; |
| |
| /** |
| * Utility class for working with android.support.v4.app.FragmentTabHost |
| */ |
| public class FragmentTabHostUtil { |
| |
| public static final String[] CN_FRAGMENT_TAB_HOST = { |
| "android.support.v4.app.FragmentTabHost", |
| "androidx.fragment.app.FragmentTabHost" |
| }; |
| |
| private static final String[] CN_FRAGMENT_MANAGER = { |
| "android.support.v4.app.FragmentManager", |
| "androidx.fragment.app.FragmentManager" |
| }; |
| |
| /** |
| * Calls the setup method for the FragmentTabHost tabHost |
| */ |
| public static void setup(TabHost tabHost, Context context) { |
| Class<?> fragmentManager = null; |
| |
| for (int i = CN_FRAGMENT_MANAGER.length - 1; i >= 0; i--) { |
| String className = CN_FRAGMENT_MANAGER[i]; |
| try { |
| fragmentManager = Class.forName(className, true, |
| tabHost.getClass().getClassLoader()); |
| break; |
| } catch (ClassNotFoundException ignore) { |
| } |
| } |
| |
| if (fragmentManager == null) { |
| Bridge.getLog().error(ILayoutLog.TAG_BROKEN, |
| "Unable to find FragmentManager.", null, null); |
| return; |
| } |
| |
| try { |
| invoke(getMethod(tabHost.getClass(), "setup", Context.class, |
| fragmentManager, int.class), tabHost, context, null, |
| android.R.id.tabcontent); |
| } catch (ReflectionException e) { |
| Throwable cause = getCause(e); |
| Bridge.getLog().error(ILayoutLog.TAG_BROKEN, |
| "Error occurred while trying to setup FragmentTabHost.", cause, null, null); |
| } |
| } |
| } |